公开(公告)号：US10667301B2

公开(公告)日：2020-05-26

申请号：US15747221

申请日：2015-12-17

Applicant: Intel Corporation

Inventor： Kathiravetpillai Sivanesan ,  Yaser M. Fouad ,  Vesh Raj Sharma Banjade ,  Joonbeom Kim ,  Balkan Kecicioglu ,  Rath Vannithamby

IPC: H04W74/08 ,  H04W72/08 ,  H04W72/14 ,  H04W4/70

Abstract: Techniques for random access (RA) in a cellular internet-of-things (CIOT) are discussed. An example apparatus configured to be employed within a User Equipment (UE), comprises a receiver circuitry, a processor, and transmitter circuitry. The receiver circuitry is configured to receive RA resource allocation information via one of a system information message or a downlink control information (DCI) message. The processor is operably coupled to the receiver circuitry and configured to: select a RA preamble sequence; generate a payload; and spread the payload via a spreading sequence. The transmitter circuitry is configured to transmit, based on the RA resource allocation information, a RA message comprising the RA preamble sequence and the payload, wherein the RA message is transmitted in a RA slot. The receiver circuitry is further configured to receive a response comprising a device identity of the UE and one of an uplink (UL) grant or a RA reject message.

公开(公告)号：US10581549B2

公开(公告)日：2020-03-03

申请号：US15573377

申请日：2015-12-24

Applicant: INTEL CORPORATION

Inventor： Kathiravetpillai Sivanesan ,  Yaser Fouad ,  Vesh Raj Sharma Banjade ,  Joonbeom Kim ,  Balkan Kecicioglu ,  Yanzeng Fu ,  Rath Vannithamby

IPC: H04J13/00 ,  H04W72/04 ,  H04W52/24 ,  H04W74/08

Abstract: A base station can obtain channel quality conditions for mobile devices in a scheduling interval and identify a channel quality, a target transmission scheme, and a transmission power level for each of the mobile devices. The base station can assign a unique orthogonal CDMA code and can force the mobile devices to transmit K repeated bursts of uplink data such that each of the mobile devices has a rotated phase shift based on the unique orthogonal CDMA code assigned to each of the mobile devices with each of the mobile devices multiplexed on a same physical channel using an overlaid CDMA operation. The base station can process K repeated bursts that are multiplexed on the same physical channel using the overlaid CDMA operation. The base station can separate the mobile devices according to the unique orthogonal CDMA code and use IQ accumulation according to combine the K repeated bursts.

公开(公告)号：US10931422B2

公开(公告)日：2021-02-23

申请号：US15746776

申请日：2015-12-24

Applicant: Intel Corporation

Inventor： Joonbeom Kim ,  Kathiravetpillai Sivanesan ,  Vesh Raj Sharma Banjade ,  Yaser Fouad ,  Balkan Kecicioglu ,  Rath Vannithamby

IPC: H04L5/00 ,  H04W72/04 ,  H04L25/02

Abstract: Technology for a base station operable to transmit downlink reference signals to user equipments (UEs) is disclosed. The base station can identify a UE to receive a set of pre-configured downlink reference signals from the base station. The set of pre-configured downlink reference signals can include a set of pre-configured pilot symbols in accordance with a defined reference signal transmission pattern that is characterized by a first pilot symbol spacing parameter (Nt) in a subcarrier time domain and a second pilot symbol spacing parameter (Nf) in a subcarrier frequency domain. The base station can transmit to the UE the set of pre-configured downlink reference signals in accordance with the defined reference signal transmission pattern. The UE can be configured to detect the set of pre-configured downlink reference signals and perform a channel estimation based on the set of pre-configured downlink reference signals.

公开(公告)号：US20180220452A1

公开(公告)日：2018-08-02

申请号：US15747221

申请日：2015-12-17

Applicant: Intel Corporation

Inventor： Kathiravetpillai Sivanesan ,  Yaser M. Fouad ,  Vesh Raj Sharma Banjade ,  Joonbeom Kim ,  Balkan Kecicioglu ,  Rath Vannithamby

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/08

Abstract: Techniques for random access (RA) in a cellular internet-of-things (CIOT) are discussed. An example apparatus configured to be employed within a User Equipment (UE), comprises a receiver circuitry, a processor, and transmitter circuitry. The receiver circuitry is configured to receive RA resource allocation information via one of a system information message or a downlink control information (DCI) message. The processor is operably coupled to the receiver circuitry and configured to: select a RA preamble sequence; generate a payload; and spread the payload via a spreading sequence. The transmitter circuitry is configured to transmit, based on the RA resource allocation information, a RA message comprising the RA preamble sequence and the payload, wherein the RA message is transmitted in a RA slot. The receiver circuitry is further configured to receive a response comprising a device identity of the UE and one of an uplink (UL) grant or a RA reject message.